Heat-regulating system.



WITNESSES W. D. SMITH. BEAT RBGULATING SYSTEM.-

AIPLIOATID'H FILED JAE. 29, 190B.

Patented Apr. 25, 1911.

IN VEN TOR.

' UNITED STATES PATENT OFFICE.

WILLIAM. nouemssurrn, or cmcaeo, nmmors.

HEAT-BEGUL ATING SYSTEM.

" Specification 0! letters Patent. Application filed January 29, 1908.Serial No. 413,293.

' Patented Apr. 25, 1911.

To all whom it may concern: H

Be it known that I, WILLIAM DOUGLAS Slurrrr, a subject of the King ofGreat Britain, residing at Chicago, in the county of Cook and State ofIllinois, have invented new and useful Improvements in Heat-RegulatingSystems, of which the following is a specification;

My invention relates to improvements in heat regulating systems, and hasfor its salient object to providea system of the character describedwhich may be operated with a very small amount of power and that thatamount will be practically constant under all conditions.

It is adapted to be operated by electric power thus afi'ordin a systemeasy of ap plication and well a apted for domestic use as well as inbuildings for business and other purposes.

Furthermore, it is my object to provide a device of the characterdescribed which is simple in construction and which may be manufacturedand installed at a small cost.

Other and further objects of my inven-.

tion will best become apparent from the following description taken inconjunction with the accompanying drawings, wherein:

' reference refer always understood that by the said the figure is anelevation of an electrical operating device connected to a valve, whichis shown in sectional elevation through its center. i

- Throughout the figures like numerals of to like parts.

In the drawing, 5, indicates a valve shell, the plan view of which ispreferably circular in contour, having the top portion, 6, and thebottom portion, convenience of manufacture and for attachin a doubleacting spring diaphragm, 8 of suitable material preferably of phosphorbronze at each of these points. It will be term double acting springdiaphra m, as hereinafter used, I contemplate a diaphragm the centralpart of which is capable of motion 'in directions substantiallyperpendicular to the plane of the diaphragm, a certain distance oneither side of a neutral point, and when the said central part is placedin a. position 7, jointed to 5 for" just ast the said neutral point oneither side, 1t exerts a pressure in the direction of increasing itspoint.

9, indicates a valve 5 indle, passing through the diaphragm an valve,consisting 0 two parts joined with a coupling, 10, and having an endconnection, 11 at the top engaging with the lever 22. l

12 are nuts to secure the spindle to the diaphragms. 1 i

13, is a valve by nuts 12.

'14 indicates a valve seat around the opening 15, of suitable materialpreferably metal or vulcanized rubber.

16 indicates a hollow adjustable stop through which the coupling 10, mayslide, and is screwed into the shell 6, to form a stop against which thenut 12, may rest, thus providing means for regulating the amount ofopening of the valve. 7 i

17, indicates an inlet openin 18 an outlet opening, each tapped suitablefor attaching pipes.

19 indicates a dividing partition between the inlet and outlet openings.

20 is a bracket which may be of cast iron or other suitable material,adapted for clamping to the end section of a radiator. 21, a bracketsupporting the lever 22.

distance from the said neutral also secured on the spindle v 23 is astationary electro-magnet support ed upon the stand 24.

25 is a movable electro-magnet connected to the lever-connection 26,which is pivotally connected to lever 22.

27 is a link pivotally connected to each of the levers 22 and 28, 28 isa lever-pivotally mounted on the bracket 29 and carrying contact springs30, 31, 32 and 33 secured to and insulated from its end opposite to theconnecting link; 34, 35, 36, 37, a

38, 39 and 40 are suitable contact pieces for making connections in anelectric circuit, each should be rovided with binding screws, and have aIn suitable for clamping, and they should be mounted on a suitablysupported plate of insulating material curved slot so that they may 52having a lon be adjusted 1t and nut on the bac ing and 48 or 49 itcloses an electric circuit.

and clamped in desirable positions for closreciprocating contactsprings. 41 is a piece of highly expansiblematerial fixed at one end,the other end of which is free to move as expansionor, contractionoccurs; one end of the lever 42, fulcrumed at 43 engages the movable endof 41, the other end of 42 en ages a lever 44, which is pivotallymounted and has two bent tubes of suitable material secured to it, eachbent tube containing a suitable electricity conducting liquid, 45 and46, lower portions of the mercury columns 45 and 46 are connected in acircuit and when the mercury comes in contact with eit ll lfir e spring'47 resses on the under side of the mercury tu d in a position asIllustrated in Fig. 1 of the drawings.

The action of this apparatus is as follows:

' As shown it indicates the positions at low l temperature, theelectro-magnets having tacts 30 and 31 being arranged opened the valveto allow the heat medium to pass through it, the circuit breakers havebroken the circuits and placed the contacts in positions so that as soonas the temperature rises the thermostat will make contact at 49 and theupper electro-magnet will be drawn downward, just before it reaches themiddle of its closing action, in order to provide clearance between thecontact spring 30, and. contact blocks 34 and 35, and also between thecontact spring 31 and contact blocks 35 and 36 thecircuit in the lowerelectro-magnet 23 will be broken. The valve being at this time in aposition where it is easily moved the upper electro-magnet will pull itover the neutral point of the double acting spring diaphragms, whichwill then complete the act on of closing the valve, The circuit may bebroken in the upper electro-magnet at any time after the double actingspring diaphragms pass the neutral point of thelr action, by adjustingthe contact block 38 to break contact with the spring 32. The springcontact 30 reciprocating between the contact blocks 34and 3'5, and thespring 31 reciprocating between the contact blocks 35 and 36 act toreverse the poles in the lower electro-magnet. The spring conso thatthey make contact with their contactblocks during almost half the strokeeach way. The

spring contact 32 reciprocating between contact blocks 37 and 38 acts asa circuit breaker for the upper electro-magnet 25. The spring contact 33reciprocating between contact blocks 39 and 40 acts as acircuit breakerfor the lower electro-magnet 23.

Referring to the valve the upper diato cooperating with phragm 8, inaddition breaking the circuits through the ,1s the same under allconditions preferably mercury, the

retaining the mercury device- -means adapted to use-electricittheelectro-magnets for the operation of the valve, avoids the use of astufiing box, and thereby eliminates uncertain frictions. The utility ofthe'lower diaphragm is to neutralize the effect of the steam pressure,or other pressures, on the underside of the valve, thus of pressure.

It is not necessary that both be double acting spring diaphra s, but inractice it will be more convenlent to have 0th alike.

The purpose of the ,screws 50 and 51,

which protrude into the mercury columns 45 and 46, is to raise or lowervthe mercu in either of the upstanding legs of'the tubes so thatcontacts with 48 and 49 may be made at any desirable temperature.

the force required to open or close the valve,

Having thus described my invention, what I claim and desire to secure byLetters Patent, of the United States, is: r

1. In a heat regulatin adapted when in one ositlon to open a passagefrom a source 0 heat and when'in another position to close-the saidpassage, to cause mot-ion of the valve for .part 0 its travel from oneto the other of said positions, either way, means for storing'potentialenergy and means for utilizing the potential energy thus stored to causethe valve to complete its travel, either way, between its closed andopen positions, an electric switch,

means adapted to use electricity to cause motion of the switch for partof its travel be-.

tween contact points, either way, means adapted to utilize potentialenergy to complete the said travel of the switch between contact points,either way, in combination with a thermostat adapted to close electriccircuits at predetermined temperatures.

2. In a heat regulating system, a valve adapted when in one position toopen a passage from a source of heat and when in another position toclose the said passage, means adapted to use'electricity to cause mosystem; a valve 2 tion of the valve from" one to the other of saidpositions, an electric switch means adapted to use electricity to causemotion of the switch for part of its travel between contact points,means for storing potential energy and means for utilizing the potentialenergy thus stored to complete the travel of the said switch betweencontact nation with a thermostat electric circuits atpredeterminedtemperatures.

points in combi- 3. In a heat regulating system a valve 1 adapted whenin one position to close apassage from a source of heat and when inanother position to open the said passage, an electric switch adaptedwhen in one position to close a circuit and when in another position toclose a diiferent circuit, mechanical iza adapted toclose connectionbetween the valve and switch so thermostat adapted to close electriccircuits that they move in unison},1 means Iadapted xi at predeterminedtemperatures. use electricit to cause t e switc to trave part of thedistance between its contact WILLIAM DOUGLAS M 5 points each way, meansfor storing energy to Witnesses:

' complete the travel of the switch between Jonn G. Pmsons, contactseach way, in combination with a FRANK E. KING.

